@Override
 public User loginFromWechat(String code, String siteId) {
   AccessToken accessToken = wechatService.getAccessToken(code);
   if (accessToken.isInvalid()) {
     throw new ServiceException(accessToken.getErrmsg());
   }
   User user = userDao.getByProperty("wechatUserId", accessToken.getOpenid());
   if (null == user) {
     WechartUserInfo userInfo = wechatService.getUserInfo(accessToken);
     if (userInfo.isInvalid()) {
       throw new ServiceException(userInfo.getErrmsg());
     }
     user = new User();
     user.setWechatUserId(userInfo.getOpenid());
     user.setName(userInfo.getNickname());
     if (null != userInfo.getSex()) {
       if ("1".equals(userInfo.getSex())) {
         user.setSex(User.Sex.MALE);
       }
       if ("2".equals(userInfo.getSex())) {
         user.setSex(User.Sex.FEMALE);
       }
       user = addUser(user, siteId);
       user.setPoints(5);
       userDao.update(user);
     }
   }
   user = loginHandle(user);
   return user;
 }
 @Override
 public User getCurrentLoginUser(String token) {
   User user = userDao.getByProperty("token", token);
   if (null == user) {
     throw new ServiceException("令牌无效", "900");
   }
   long diffTime = System.currentTimeMillis() - user.getLastLoginTime().getTime();
   if (diffTime > 1000 * 60 * 60 * 3) {
     throw new ServiceException("令牌无效", "901");
   }
   return user;
 }
 @Override
 public User qqLogin(String accessToken) {
   User user = null;
   HttpClient httpClient = new HttpClient();
   HttpMethod method =
       new GetMethod("https://graph.qq.com/oauth2.0/me?access_token=" + accessToken);
   try {
     httpClient.executeMethod(method);
     String json = method.getResponseBodyAsString();
     json = json.replace("callback(", "").replace(");", "");
     JsonObject jsonObject = new Gson().fromJson(json, JsonObject.class);
     String openid = jsonObject.get("openid").getAsString();
     user = userDao.getByProperty("qqOpenId", openid);
     if (null != user) {
       user = loginHandle(user);
     }
   } catch (Exception e) {
     e.printStackTrace();
     throw new ServiceException(e.getMessage());
   }
   return user;
 }
 @Override
 public User getUserByMobile(String mobile) {
   return userDao.getByProperty("mobile", mobile);
 }